html,
body {
  margin: 0 auto;
  padding: 0;
  color: #444;
  max-width: 750px;
}



#login {
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 50vh;

  .van-form {
    padding: 20px;
    border-radius: 7px;
    box-shadow: 0 0 15px rgba(0, 0, 0, .2);
  }
}

#main {
  position: relative;
  height: 100vh;

  .content {
    overflow-y: auto;
    display: flex;

    .btn {
      flex: 2;
      display: flex;
      flex-direction: column;
      justify-content: space-around;
      align-items: center;
      height: 50vh;
      position: sticky;
      top: 15%;

      .van-button {
        flex: 1;
        margin: 5%;
      }

    }

    .list {
      text-align: center;
      flex: 8;
      height: 80%;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;

      .item {
        width: 80px;
        height: 80px;
        position: relative;
        border-radius: 50%;
        overflow: hidden;
        margin: 5px 20px;
        color: #000;
        background: rgba(40, 48, 211);
        font-size: 24px;
        border: 4px solid transparent;

        &.active {
          background: rgb(4, 22, 104);
          color: #fff;
        }

        &.hover {
          box-shadow: 0 0 10px rgba(0, 0, 0, .2);
          border-color: #ee0a24;
        }

        span {
          position: absolute;
          top: 0;
          left: 0;
          right: 0;
          bottom: 0;
          margin: auto;
          display: flex;
          align-items: center;
          justify-content: center;
        }
      }
    }
  }

  .msg {
    font-size: 24px;
    text-align: center;
    height: 40px;

    span {
      font-size: 36px;
      color: #ff3300;
      margin: 0 20px;
    }
  }


}